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Machine for mechanically advancing clean cut underground mining

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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Mechanism for advancing continuous mining machine through mining

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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Method and apparatus for drilling a tunnel

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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Mineral mining installation

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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Mineral mining installation with planer and jet carrier

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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Mining apparatus

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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Mining machine having advancing mine roof supports

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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Mining machine having pneumatic conveyance and cutter head floor

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means
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